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Pneumatic fluorine lined butterfly valve adopts ptFE lined butterfly plate with spherical sealing surface, pneumatic fluorine lined butterfly valve is easy to operate, tight sealing performance, extend the service life;It can be used to cut off or adjust the flow quickly.Pneumatic lined tetrafluoro-butterfly valves are suitable for situations where reliable sealing and good regulation characteristics are required.The valve body adopts split type, the sealing of both ends of the valve shaft is controlled by the fluorinated rubber on the rotary base surface between the butterfly plate and the seat;Ensure that the valve shaft is not in contact with the fluid medium in the cavity.Pneumatic lined tetrafluoro-butterfly valve is widely used in the transportation of liquid and gas (including vapor) in various types of industrial pipelines, the use of serious corrosive medium, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine gas, strong alkali, aqua aqua and other corrosive medium.

Product model: D641F
Nominal diameter: DN50-DN600
Material of valve body: WCB, 304, 316
Connection: clamping, flanged, lug clamping
Pressure classes: PN1.0mpa, PN1.6mpa
Seat seal: PTFE: -30℃ ~ 140℃
Valve plate material: WCB, 304, 316 lined PTFE
Stem material: stainless steel 410, 304
Suitable medium: water, liquid, gas, oil, powder, steam, caustic medium.